Home / 192,005.40-288,353.70-139,474.20

Finding the Fourth Proportional to 192,005.40, 288,353.70 and 139,474.20

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Solution

The fourth proportional to 192,005.40, 288,353.70 and 139,474.20 is: 209,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,005.40 : 288,353.70 = 139,474.20 : x
  2. Step 2: Convert to fraction form
    192,005.40/288,353.70 = 139,474.20/x
  3. Step 3: Cross multiply
    192,005.40x = 288,353.70 × 139,474.20
  4. Step 4: Simplify right side
    192,005.40x = 40,217,901,624.54
  5. Step 5: Solve for x
    x = 40,217,901,624.54/192,005.40
  6. Step 6: Final answer
    x = 209,462.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.